Overview video: https://www.youtube.com/watch?v=HtADtIsoB1w

Documentation (features, overview and breakdown of all Blueprints): http://polygonjelly.com/products/unreal/trainandrail/docs/TrainAndRail.pdf

Product homepage: http://polygonjelly.com/products/unreal/trainandrail

Build complex or simple train tracks in minutes, then preview them instantly. Trains can be customized for any setup, look or feel.

Tracks are spline based, allowing you to setup complex meshes quickly. Also included is the terrain train track for quickly building tracks across uneven terrain. Track triggers allow you to have trains or carriages fire events in the game world. Use triggers to create junctions that change, or level crossing barriers that lower as a train approaches, or leaves.

The mine cart comes with a custom jump trigger that uses built-in events to extend the base carriage, allowing the mine cart to jump, rotate and scale into the air for comic effect. Each carriage can detect obstacles on the track and respond accordingly, some can stop and wait for it to move, others can ignore it and keep on going. End of track options give you the ability to define how the train or carriage responds to the end of the track; stop, reverse direction, derail, .., or add your own custom response.

The system comes with a pre built mine cart, modern train engine, and two example carriages.

The system is highly customizable and comes with documentation, examples and videos.